转子分块的磁通切换型发电机励磁特性的研究  

Study of Excitation Characteristics for Rotor-Segmented Flux-Switching Generator

作　　者：张华[1] 李光友[2] 侯昆明 汤磊[1] 谢贤飞[1] 

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,武汉430074 [2]山东大学,济南250061 [3]国家电网聊城供电公司,聊城252000

出　　处：《微特电机》2016年第4期29-32,36,共5页Small & Special Electrical Machines

摘　　要：针对有限元分析中转子分块的磁通切换型发电机的励磁电流超过一定值后,输出电动势反而随励磁电流增大而减小的现象进行了分析研究。在考虑到定子磁路发生局部饱和的基础上,利用等效磁路法,解释了产生这种励磁特性的原因,并结合有限元方法分析了不同饱和度下的励磁特性。这些分析对该类电机的电磁设计,具有一定的参考意义。In the FEM analyses of the rotor-segmented flux-switching generator, when the excitation current exceeds aspecific value, the output EMF will decrease as the excitation current takes a further increase. Taken the partial saturationof the stator core into account, an equivalent magnetic circuit method was performed, which can give an explanation to thespecial excitation characteristic. As well, based on FEA, the excitation characteristics of different saturation degrees wereanalyzed. These analyses can provide some guidance on the electro-magnetic design for generators of the same kind.

关 键 词：转子分块 磁通切换 励磁特性 饱和 等效磁路 

分 类 号：TM34[电气工程—电机]